.nav-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 32px;
  height: 100px;
  background: #fff;
  font-family: '微软雅黑', Arial, sans-serif;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.nav-left {
  display: flex;
  align-items: center;
margin-left: 20px;
}

.nav-logo {
  width: 200px;
  height: 100px;
  margin-left: 20px;
}

.nav-title {
  color: #fa8c16;
  font-size: 22px;
  font-weight: bold;
  margin-right: 6px;
}

.nav-dot {
  color: #fa8c16;
  font-size: 18px;
  margin-right: 16px;
  margin-left: 2px;
}

.nav-center {
  display: flex;
  align-items: center;
  gap: 0px;

}

.nav-item {
  color: #222;
  font-size: 18px;
  cursor: pointer;
  display: flex;
  align-items: center;
  margin-left: 0px;
  padding: 0 5px;
}

.nav-enterprise {
  color: #7c5a1c;
  font-weight: bold;
  position: relative;
}

.nav-red {
  color: #f5222d;
  font-weight: bold;
}

.nav-divider {
  width: 1px;
  height: 24px;
  background: #e5e5e5;
  margin: 0 3px;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-right: 40px;
}

.nav-vip-tag {
  color: #222;
  font-size: 16px;
  display: flex;
  align-items: center;
}

.nav-login {
  display: flex;
  align-items: center;
  color: #222;
  font-size: 16px;
  cursor: pointer;
}

.nav-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  margin-right: 6px;
  background: #f5f5f5;
  border: 1px solid #eee;
}

.nav-bubble-wrap {
  position: relative;
  display: inline-flex;
  align-items: center;
}

.nav-bubble {
  position: absolute;
  top: -28px;
  left: 50%;
  transform: translateX(-50%);
  padding: 2px 12px;
  font-size: 14px;
  border-radius: 16px;
  white-space: nowrap;
  z-index: 2;
  font-weight: normal;
  line-height: 22px;
}

.nav-bubble-enterprise {
  background: #f5c97b;
  color: #7c5a1c;
  position: relative;
  
}
.nav-bubble-enterprise::after {
  content: '';
  position: absolute;
  left: 20%;
  top: 100%;
  transform: translateX(-50%);
  width: 0;
  height: 0;
  border-left: 7px solid transparent;
  border-right: 7px solid transparent;
  border-top: 7px solid #f5c97b;
}

.nav-bubble-vip {
  background: #fa8c16;
  color: #fff;
  position: relative;
 
}
.nav-bubble-vip::after {
  content: '';
  position: absolute;
  left: 15%;
  top: 100%;
  transform: translateX(-30%);
  width: 0;
  height: 0;
  border-left: 7px solid transparent;
  border-right: 7px solid transparent;
  border-top: 7px solid #fa8c16;
}

.nav-bubble-enterprise,
.nav-bubble-vip {
  position: absolute;
  left: 50%;
  top: -32px;
  transform: translateX(-50%);
}

.nav-bubble-enterprise::after,
.nav-bubble-vip::after {
  content: '';
  position: absolute;
  left: 25%;
  top: 100%;
  transform: translateX(-50%);
  width: 0;
  height: 0;
  border-left: 7px solid transparent;
  border-right: 7px solid transparent;
}

.nav-bubble-enterprise::after {
  border-top: 7px solid #f5c97b;
}

.nav-bubble-vip::after {
  border-top: 7px solid #fa8c16;
}

.nav-item:hover,
.nav-vip-tag:hover,
.nav-login:hover {
  color: #fa8c16;
}
